GB/T 16895.2-2017 English PDF

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GB/T 16895.2-2017: Low-voltage electrical installations -- Part 4-42: Protection for safety -- Protection against thermal effects
Status: Valid

GB/T 16895.2: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 16895.2-2017	259	Add to Cart	3 days	Low-voltage electrical installations -- Part 4-42: Protection for safety -- Protection against thermal effects	Valid
GB 16895.2-2005	319	Add to Cart	3 days	[GB/T 16895.2-2005] Electrical installations of buildings -- Part 4-42: Protection for safety -- Protection against -- Thermal effects	Obsolete
GB 16895.2-1997	239	Add to Cart	3 days	Electrical installations of buildings. Part 4: Protection for safety. Chapter 42: Protection against thermal effects	Obsolete

Similar standards

GB/T 16895.19   GB 17945   GB/T 16895.18   GB/T 16895.3   GB/T 16895.7   GB/T 16895.10   

Basic data

Standard ID: GB/T 16895.2-2017 (GB/T16895.2-2017)
Description (Translated English): Low-voltage electrical installations -- Part 4-42: Protection for safety -- Protection against thermal effects
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q77
Classification of International Standard: 91.140.50
Word Count Estimation: 13,176
Date of Issue: 2017-11-01
Date of Implementation: 2018-05-01
Older Standard (superseded by this standard): GB/T 16895.2-2005
Regulation (derived from): National Standard Announcement 2017 No. 29
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China

GB/T 16895.2-2017: Low-voltage electrical installations -- Part 4-42: Protection for safety -- Protection against thermal effects

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Low-voltage electrical installations-Part 4-42. Protection for safety-Protection against thermal effects ICS 91.140.50 Q77 National Standards of People's Republic of China Replacing GB/T 16895.2-2005 Low-voltage electrical installations Part 4-42. Safety protection Thermal effect protection Part 4-42. Protective forsafety-Protection factor for male effects (IEC 60364-4-42.2010, IDT) Posted.2017-11-01 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released Directory Preface Ⅰ 420.1 Scope 1 420.2 Normative references 1 420.3 Terms and definitions 1 Electric equipment caused fire protection 2 Protective measures for fire danger areas 422.1 General requirements 3 422.2 Conditions for emergency evacuation 3 422.3 A place of fire hazard due to the nature of the material being processed or stored 4 422.4 Place with combustible building materials 6 422.5 Fire Spread Structure 6 422.6 Selection and Installation of Electrical Installations in Premises Endangering Non-Replaceable Items 6 423 Burns protection 7 424 Overheat protection 7 424.1 Forced ventilation heating system 7 424.2 Equipment for producing hot water or steam 7 424.3 space heating equipment 7 Reference 9

Foreword

GB/T 16895 "low-voltage electrical installations" is divided into five parts, each part is divided into multiple sub-parts. --- Part 1. Basic principles, general characteristics assessment and definition; --- Part 4. Security; --- Part 5. Selection and installation of electrical equipment; --- Part 6. Inspection; --- Part 7. Particular equipment or place requirements. This section GB/T 16895 "low-voltage electrical installations," Part 4. Security Part 42. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 16895.2-2005 "Electrical installations in buildings - Part 4-42. Protection of thermal protection," and GB/T 16895.2-2005 compared to the main technical changes are as follows. Its scope now includes all thermal effects on electrical installations that propagate to other fire barriers adjacent to it and Flame protection; --- Added/revised requirements for evacuation routes in case of emergency; --- Add/modify the processing or storage of the nature of the material requirements; --- Add/modify the requirements on combustible building materials; --- Add/modify the flame spread on the structure requirements; --- Increases the places that may endanger valuables, the choice of its installation and installation of new requirements; --- Increase the space heating equipment in overheat protection. This section uses the translation method identical with IEC 60364-4-42.2010 "Low-voltage electrical installations Part 4-42. Safety and thermal protection Should be protected. " The documents of our country that are consistent with the corresponding international documents that are normative references in this section are as follows. --- GB 7000.17-2003 Limit surface temperature lamps and lanterns safety requirements (IEC 60598-2-24.1997, IDT) --- GB/T 18380 (all parts) burning test of cables and optical cables under flame conditions [IEC 60332 (all parts)] --- GB/T 19215 (all parts) Cable trunking system for electrical installation [IEC 61084 (all parts)] --- GB/T 19215 (all parts) Cable trunking system for electrical installation [IEC 61084 (all parts)] --- GB/T 20041 (all parts) Conduit system for electrical management [IEC 61386 (all parts)] --- GB/T 21762-2008 Cable Management Cable Tray Systems and Cable Ladder Systems (IEC 61537.2006, IDT) This section compared with IEC 60364-4-42.2010, chapter, Article number exactly the same, the technical content is identical, but made the following editorial modify. --- Because Appendix A is the country that other countries apply this standard, it has nothing to do with our country and is deleted in this section. This part of the National Building Electrical Installation Standardization Technical Committee (SAC/TC205) and focal point. This section is responsible for the drafting unit. CLP CLP Design Institute Co., Ltd.. This section participates in the drafting unit. China Power Engineering Co., Ltd. The main drafters of this section. Chen Tong, Wang Zengyao. This part replaces the standards previously issued as. --- GB/T 16895.2-1997, GB 16895.2-2005, GB/T 16895.2-2005. Low-voltage electrical installations Part 4-42. Safety protection Thermal effect protection 420.1 Scope GB/T 16895 This section applies to the protection of electrical installations involving people, livestock and property. --- thermal effects caused by electrical installations, the burning or deterioration of materials and the risk of burns; --- In the event of a fire, the flame within the electrical installation will spread to a nearby fire protection partition with fire protection; and --- Including safety equipment, electrical equipment, the safety features damage. Note Overcurrent protection is specified in IEC 60364-4-43. 420.2 Normative references The following documents for the application of this document is essential. For dated references, only the dated version applies to this article For all undated references, the latest edition (including all amendments) applies to this document. GB/T 16895.18-2010 Electrical installations in buildings - Part 5-51. General rules for the selection and installation of electrical equipment (IEC 60364-5-51.2005, IDT) Low voltage electrical installations - Part 4-41. Safety protection Shock protection (IEC 60364-4-41. 2005, IDT) IEC 60332 (all parts) burning test of cables and cables under flame conditions (Testsonelectricandopticalfibre cablesunderfireconditions) IEC 60598-2-24 Luminaires Part 2. Particular requirements Chapter 24. Limits of surface temperature Luminaires (Part 2 - 24. Particularrequirements-Luminaireswithlimitedsurfacetemperatures) IEC 61084 (all parts) Electrical installation cable trunking system (Cabletrunkingandductingsystemsforelec- tricalinstalations) IEC 61386 (all parts) Duct for electrical management system (Conduitsystemsforcablemanagement) IEC 61534 (all parts) Power Rail System (Powertracksystems) IEC 61537 cable management cable tray system and cable ladder system (Cablemanagement-Cabletraysystems andcableladdersystems) 420.3 Terms and definitions The following terms and definitions apply to this document. 420.3.1 Combustible combustible Can burn. 420.3.2 Fire --- a combustion process characterized by the discharge of heat and exhaust gas with smoke, and/or flame and/or burning; --- Combustion is not controlled by the rapid spread of time and space. ......

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